Datasheet

2-8
P8SCT User's Manual
NIC1 LED
Power Button
Overheat/Fan Fail LED
1
Reset Button
2
IDE/SATA LED
Power On LED
Reset
Signal
Vcc 3
Vcc 3
Ground
1920
Vcc 3 STB
X
Ground
NMI
X
Reserved
NIC2 LED
Ground
Reserved
Vcc 3 STB
Vcc 5 STB
PW_ON Connector
The PW_ON connector is located on
pins 1 and 2 of JF1.
2-6 Connecting Cables
Power Supply Connectors
The primary power supply connector
(PW1) on the P8SCT meets the SSI
(Superset ATX) 24-pin specifi cation.
Refer to the table on the right for the
pin defi nitions of the ATX 24-pin power
connector. You must also connect the
4-pin (PW2) processor power connec-
tor to your power supply. Refer to the
table below right for the PW2 (12V)
connector.
Pins #
1 & 2
3 & 4
Definition
Ground
+12 V
+12V 4-pin
Connector
Required Con-
nection
ATX Power Supply 24-pin Connector
Pin Definitions
Pin Number Definition
13 +3.3V
14 -12V
15 COM
16 PS_ON#
17 COM
18 COM
19 COM
20 Res(NC)
21 +5V
22 +5V
23 +5V
24 COM
Pin Number Definition
1 +3.3V
2 +3.3V
3 COM
4 +5V
5 COM
6 +5V
7 COM
8 PWR_OK
9 5VSB
10 +12V
11 +12V
12 +3.3V
KB/MS
USB1/2
Parallel Port
A
T
X
-
2
4P
i
nP
W
R
J
P
W
A
K
E
1
4
-Pin
P
WR
C
P
U
(CopperRiver)
NorthBridge
G
LAN1
GLA
N2
DIMM
1A (blue)
GLA
N
CTRL
J
P
L
1
J
PL
2
PCI-X 64 bit/133 MHz
(
L
G
A
7
7
5
)
I
DE
Fan
3
Fa
n
2
J
F1
Fan1
Fan5
PXH-V
JPA1
I
P
M
I
Bu
zze
r
J9
LE1
E7221
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
PCI-32 bit/33 MHz
P
C
I#
1
PC
I#2
PCI
#3
PCI-32 bit/33 MHz
PC
I#
4
PCI
#5
P
CI-X#6
SI
/O
C
O
M2
J
K
1
JW
O
R
J
W
O
L
J
W
D
F
lo
p
p
y
U
SB3
/
4
U
SB5
/
6
JL1
F
a
n
4
JFSB2
JFSB1
SA
T
A
0
SATA1
SATA
2
SATA3
JL
ED
J
B
T
1
BI
O
S
J
SL
E
D
ICH6R
South
Bridge
Bank1
Bank2
Bat
t
e
ry
J
PF
GLA
N
CTR
L
J
P
1
J
P
2
J
P
3
JPUSB1
DIMM 2A(blue)
D
I
MM
1B
(
bl
a
ck)
DI
M
M
2B (
bl
ack)
JPUSB2
COM1
VGA
ATX PWR 12V 4-Pin PWR
PWR-On
Pin #
1
2
Definition
Signal
GND
PW_ON
Pin Definitions
(JF1)